fix: remove duplicate showNewFolderModal that overwrote parent folder support

public/js/views/projectView.js

@@ -567,59 +567,3 @@ window.showNewDocModal = async function(projectId, folderId = '') {
     if (e.target === backdrop) backdrop.remove();
   };
 };
-
-// Global function: Show modal to create new folder in project
-window.showNewFolderModal = async function(projectId, parentFolderId = null) {
-  const backdrop = document.createElement('div');
-  backdrop.className = 'modal-backdrop';
-  
-  backdrop.innerHTML = `
-    <div class="modal" style="min-width: 450px;">
-      <div class="modal-header">
-        <span>📁</span>
-        <h3>Create New Folder</h3>
-        <button class="modal-close" onclick="this.closest('.modal-backdrop').remove()">✕</button>
-      </div>
-      <div class="modal-body">
-        <div class="form-group">
-          <label for="new-folder-name">Folder Name</label>
-          <input type="text" id="new-folder-name" class="form-control" placeholder="e.g., Backend">
-        </div>
-      </div>
-      <div class="modal-footer">
-        <button class="btn btn-ghost" onclick="this.closest('.modal-backdrop').remove()">Cancel</button>
-        <button class="btn btn-primary" id="create-folder-btn">Create</button>
-      </div>
-    </div>
-  `;
-  document.body.appendChild(backdrop);
-
-  const nameInput = document.getElementById('new-folder-name');
-  const createBtn = document.getElementById('create-folder-btn');
-
-  nameInput.focus();
-
-  createBtn.onclick = async () => {
-    const name = nameInput.value.trim();
-    if (!name) {
-      window.app.showToast('Please enter a folder name', 'error');
-      return;
-    }
-    try {
-      await api.createFolder({
-        name,
-        projectId,
-        parentId: parentFolderId
-      });
-      backdrop.remove();
-      window.app.showToast('Folder created', 'success');
-      window.app.navigate('project', { id: projectId });
-    } catch (e) {
-      window.app.showToast('Failed to create folder: ' + e.message, 'error');
-    }
-  };
-
-  backdrop.onclick = (e) => {
-    if (e.target === backdrop) backdrop.remove();
-  };
-};